Scaffold



BJUZSML Aprrl 2, B929. .1. BERGESEN. SR

SCAFFOLD Filed 0G13. 26, 1926 ll Sheets-Sheet 2 Schwung@ Apri@ 2, w29.J. BERGESEN, SR

SCAFFOLD 11 Sheets-Sheet 5 Filed Oct. 26, 1926 J. BERGESEN, SR

Filed Oct. 26, 1926 SCAFFOLD 11 Sheets-Sheet 4 Joh/1567656@ 52:

l Apmil 2, 11929. J. BERGESEN, SAR

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SCAFFOLD 11 Sheets-Sheet 5 Filed Oct. 26, 1926 prl 2, E929. J. BERGESEN,SR

SCAFFOLD Filed Oct. 26, 1926 ll Sheetsfsheet ll.

patented pr.. 2, 192g.

'narra aras amat aan este.

JOHN BERGESEN, SR1., OF BROMYN, NEW YORK.

SCFFGLD.

Application led October 26, 1926. Serial No. 144,348.

This invention relates to adjustable and portable metal scai'oldsupports.

An object of the invention is the provision of a metal scaffold havingknock-down characteristics which may be readily assembled ordisassembled and which maybe applied t0 any part of the building.

Another object of the invention is the provision of a metal scaffoldinghaving uprights and cross bars adjustable in a plurality of differentpositions supported by the uprights for carrying a plurality of clampsfor securing the scaffolding to the partly finished wall structure or toopenings in the wall.

A further object of the invention is the provision of a metal scaffoldwhich may be readily applied to openings in the wall with adjustablebeam supports carried by metal columns slidably mounted at their basesupon rods whichare clamped to the wall.

A still further object of the invention is the provision of a metalscaffold having supports for a plurality of beams slidably mounted onuprights with provision for securing the beams in rigid spaced relationon the supports. f i

Another object of the invention is the provision of a ymetal scaffoldingadapted to be clamped to I beams of the fiooring, the clamps beingadapted to support vertical columns while the clalnps are adjustable andslidable on said columns.

Another object of the invention is the provision of a steel seafioldformed of vertical uprights and horizontal cross beams, the up-` rightsbeing adapted to be clamped at their lower ends to a finished part ofthe wall or at openings in the Wall with adjustable and diagonallydisposed end supports bracing the ends of upper beamsy by reason of theconnection ot' the braces with the supporting clamps of the-lower beams,stanchions being pivotally connected to the upper beams which carry theworking platform and being eX- tended upwardly and connecting with ascaffold at an upper wall opening.

A still further object of the invention is the provision of a steelscatolding having a plurality of clamps for enga-ging the walls atwindow openings at various vertical heights with adjustable brace rodsconnected between the supports carrying the working platform and withclamps located at a lower level than the window opening adjacent theworking platform.

This invention will be best understood from a consideration of thefollowing detailed description of the invention, taken in conjunctionwith the accompanying drawings; nevertheless it is to be understood thatthe invention is susceptible of such changes and modifications whichshall define no material departure from the salient features of theinvention as described in the appended claims.

In the drawings:

Figure 1 is a side view in elevationy of one form of a scaHolding.

Figure 2 is an end view of the same.

Figure 3 is a side view in elevation of a modified form of theinvention.

Figure 4 is an end view ofthe same.

Figures 5 and 6 show respectively end and side views of another form ofthe invention which is adapted to be applied to the floor beams of abuilding.

Figure 7 is an end view in elevation of another form of the scaffolding.

Figure 8 is a side view in elevation of another modified form of thescaffolding adapted to be employed at a window.

Figure 9 is an end view of the same.

Fig. 10 is a plan view of the form shown in Figures 8 and 9. f

Figure 11 isa side view of a clamping arrangement for application to anI beam.

Figure 12 is an end view of the clamp shown in Figure 11.

Figure 13 yis a side view of another form Figure 15 is a side view ofthe scaffolding employed for the corners of buildings.

Figure 16 is a plan view of the scaffolding shown in Figure 15.

Figure 17 is a perspective view of the scaffolding shoWn in Figures 15and 16.

Figure 18 is a longitudinal section of a clamp.

Figure 19 is a transverse section .of said clamp.

Figure 20 is a longitudinal section of the connecting sleeve shown inFigure 2.

Figure 21 is an elevation showing a form of combined clamp and couplingfor' timber end supports of Figures 8, 9 and 10.

Figures 22, 23 and 24 show a side' view, top plan and cross section ofthe device of Figure 21. j

Figure 25 is a side elevation of the adjustably connected rod carryingsleeves shown in Figs. 13 and 14, and

Figure 26 is a similar view partly in longij tudinal section.

Referring more particularly to the drawings, (Figs. 1 and 2) 10designates a cross bar of cylindrical formation and provided with aplurality of horizontally disposed perforations 11 extending in spacedrelation along the bar. Slidably mounted on the bar area pair of clampmembers 12. These clamp members have a passage 13 at their upper endsadapted to receive the rod 10. A keyway 14 is provided in each clampmember in which is inserted a key 15 having laterally projecting lugs 16adapted to engage the opposite faces of the clamp member 12. rllhe 4upper end of each clamp member is cylindrical as shown at 2O and isprovided with a depending boss 17 having a radially disposed screw 18threaded into a passage which extends into the key-way 14 and is adaptedto engage the key 15.

The passage 13 which is inclinedV at 13a from its outer end to the innerend is deeper at its 'outer end than at the inner end as shown so thatthe clamp member 12 maybe tilted when moved along the bar 10. The

screw 18 forces the key 15 into engagement with the rod 10 for lockingthe clamp member to said rod and for forcing the jaws of the clampmembers in parallel relation with the walls of a building.

A pin 19 is adapted to be inserted in a perforation lladjacent the outerend of each clamp member and will prevent longitudinal shifting of theclamp member along the bar 10. The `pin is provided with a pivotallymounted extension lug20 Which is adapted to normally be disposed atright angles to the pin 19 and thereby prevent loss of the pin from thebar.

The inner face of clamp member 12, as shown at 23, is provided withteeth'adapted to engage the horizontal wall 53 of a house While a woodshim 24 may be placed between the wall and the teeth 23 to preventinjury to the wall.

` v A sleeve 25 is slidable on the rod 10 and is provided with anupstanding cylindrical flange 26 into which is threaded an upright 27.This upright is provided with spaced perforations 28 adapted to receivea headed pin 29 similar to pin 19, the same having a pivotally mountedlug 29a adapted to prevent loss of the pin from the upright. Pin

29 is adapted to support a slidably mountedy lwhich constitutes one endsupport of a platform. The other end of the sleeve receives acylindrical lug 34 projecting from asleeve moaeee 35 slidably mounted ona rod 36 and main? tained in a horizontal position by means of a pin 37.lhe sleeve 33 is revolvable on the lugs 32 and 34. IThe upright 36 isprovided with a pluralityof spaced perfor-'ations 38 which are adaptedto receive the pins 37 and 39. An inner sleeve 34a is threaded and hasthe opposite ends screwed into the threaded lugs 32 and 34.

A second sleeve 40 is slidable on the upright 36 and is maintained in ahorizontal position by the pin 39. rlhe sleeve 40 has a horizontalbearing 41 extending laterally therefrom and is adapted-to receive a rod42. The rod 42 extends in opposite directions from the upright 36 andhasclamp members 43 secured to its opposite end. fr1`hese clamp members aresimilar in construction to the clamp members 12 andare each providedwith a cylindrical sleeve44having-a key-way 45 adapted to receive a key46. Y,""lhe teeth of this pair of clamp members (not shown) are 'adapted'to engage opposite sides of a Wall 47. Set

described with -referencefto lother figures.'

The members 12, 43 are also provided with perforated lugs 55 and 56,respectively, for a purpose which will be presently described.

In the construction` just vdescribed it will be understood thatduplicate units are employed, one at each side of a Wall opening. Therods 10 may be readily clamped to the horizontal par-t of a wall openingby means of the 'members 12 after said members have been properlyadjusted and the set screws moved to tightened position against the keys15. Pins 19 are inserted, as aforesaid, through perforations 11 adjacentthe outer ends of the cylindrical portions 2O of the members 12 preventdisplacement of .said members. The platform sill supports 33 areadjusted to the proper height, the supporting pins 29, 37 applied, andthe clamp members 43 secured to the adjacent upright walls 47 of theopening. After the wall 47 has been completed to a predetermined heightthe clamp members 43 are loosened and reclamped at a higher point afterwhich the platform supports 33 are moved upward in a vertical positionby means of jacks (not shown) which may be placed upon wall 53 betweenuprights 27, 36. The jacking operation is carried on simultaneously onall of the platform sill supports 33 required to support the platform sothat the boards or planks which are carried thereby for supporting theworkmen need not be disturbed.

lVhen the proper heighthas been obtained the king pins 29 and 37 arereplaced in their respective perforations in the vertical rods 27 and36. Instead of the endsof the rods 10 being flattened as shown at 57 therods may be threaded at 58 to receive a cap 59 having a perforated lug60 as shown in Fi 3.

eferring more particularly to Figure 3, it will be seen that supportsare provided for carrying wooden beams 61 upon which are applied planks62 upon opposite sides of a vertical rod 63 and upon opposite side of awall 64. Slidably mounted on the rod 63 is a double-supporting member 65which has perforations 66 through which are inserted pins 67 havingpivotally mounted lugs 68 in bifurcated port-ions at the ends of saidpins` said pins passing through perforations 70 in the vertical rod 63.The pins are adapted to lock the support 65 in a predetermined positionalong a horizontal level. The support 65 has its upturned flanges 69located in spaced relation upon opposite sides of the rod 63. The beams61 are received between the iianges 69 and rest upon a base portion 71of the support 65.

Projecting laterallyT from the support 65 and integrally formedtherewith is a horizontally disposed sleeve 72 adapted to receive a rod73 which projects upon opposite sides of the sleeve 72 and is adapted toreceive the cylindrical portions 74 of vertical wall engaging clampmembers 75. Each clamp member 75 has a set screw 76 which is adapted tolock the clamp member against movement, the same as described inconneet-ion with the clamp members 12 ot Figs. 1 and 2. A clamp member75 is provided at opposite ends ofthe rod, the rod having perforations77 adapted to receive pins (not shown) for engaging the outer edges otthe clamp member 75 to prevent outward movement ot the same. These clampmembers are adapted to engage opposite sides of a vert-ical wall forsecuring the scaiiolding in position. Screw caps 59 may be employed inlieu of pins.

1Glamp members 78 are adjustably positioned on the rod 79 which isreceived by a sleeve 80 having an upstanding internally threadedsocket81 into which is screwed the lower threaded end of the rod 63. The rod79 has perforations 82 `adapted to receive pins (not shown) which engagethe outer edges of the clamp members 78 preventing displacement of saidclamp members after they have been locked into position by the setscrews 83. Clamp members 78 engage opposite sides of a wall 64-of abuilding and maintain the rods 79 and 63 in proper position.

Referring to Figures 5 and 6, a vertical column is provided having apluralitypf pcrforations 91 in which are mserted pins 92 for alsupporting clamp member 93. This clamp member has teeth 94 upon whichrest the lower edge et a timber 95. The upper edge of the timber isengaged by a toothed clamp member 96. Clamp members 93 and 96 arefurther held in position by means of set screws 97. A pin 98 is insertedthrough a perforation 91. of the vertical rod 90 above the clamp member96 and in close contact with the same for aiding in preventingdisplacement ot said clamp member.

A pair of clamp members 99 and 100 are mounted on the rod 90 and areheld in place by means of pins 101 and set screws 102. All of the pinshave chains 103 secured to the respective clamps to prevent loss ot saidpins. Clamp members 99 and 100 are adapted to engage opposite edges of aiioor beam 104 of the building. This form of scaffolding is adapted tobe erected on the inside of the building and secured to the floor beamsby means of the clamp members 99 and 100 of the vertical rods 90 locatedin spaced relation along the beam. The platform planks 105 are placedupon the upper vertical edges of the timbers and arranged along the wallat` the inside and outside of the building.

Adjacent the upper end of the rod 90 are adjustably positioned a pair ofclamp members 106 and 107 having biting teeth adapte-d to engageopposite edges of the timber support or brace 108. These clamp membersare constructed in a manner similar to the other clamp members employedin the various structures. Said clamp members 106, 107 have perforatedears 109 adapted to beengaged by a brace rod which will be presentlyexplained, said members being supported by pins 110. It will be notedthat these clamp members 106, 107 project laterally from opposite sidesof the post or rod 90 and thereby provide suflicient gripping space forengaging the edges of the timber 108. This timber is for the purpose oftying the upper ends of a plurality of spaced posts 90. v

Referring more particularly to Figure 7, a post 111 is provided with apair of spaced clamp members 112 adapted to clamp therebetween adjacentthe opposite ends a pair of beams 113 whereby said clamps and the post111 are supported. Set screws 114 secure the clamp members againstAdisplacement and pins 115 cooperate with the set screws for maintainingthe position of the clamps. Above the clamps 112 are provided a pair ofspaced clamp members 116 secured in position in a manner previouslydescribed and are adapted to grip a pair of timbers 117 in close contactwith the column or post 111. A pair of clamp members 118 are secured inposition above the clamp members 116 and are adapted to clamptherebetween a tie timber (not shown) in a manner similar to the iloclamping of the tie timber or beam 108 of Figure 5. rlfhe timbers 117are adapted t0 support planks in the same manner as the supporting ofthe planks disclosed 1n Figures 3 and 6.

When it is desired to elevate the platform due to the completion of thewall to a predetermined height above the first position of the platform,jacks are employed for raising the timbers 95 or 117 as the case may beafter the pins 98 or 98"L have been removed..I

Referring more particularly to Figures 8, 9 and 10, it will be seen thata horizontal cross bar 119 is provided with a pair of clamp members 120`adjustably mounted in spaced relation on said bar. rlhese clamp membersare locked in position by means of the set screws 121 and are adapted toengage a wall between the same whereby `post or column 1.22 is supportedin a vertical manner having its lower end threaded into a boss 123carried by a sleeve 124. This sleeve is made rigid with the bar 119 inany approved manner as by means of pins 125 passing through perforationsin the sleeve and in the bar 119.

A timber support 126 is slidably mounted on the post 122 and has anupstanding flange 127 spaced sufficiently from post 122 to carry twotimbers 128 on the base portion 129 of the support. The support has asleeve 130 received by the post 122 and has a pair of slots 131 adaptedto be alined with perforations 132 in the post 122 and receive pins 133for securing the support in position.

rllhe vertical sleeve 130 is provided with a horizontal sleeve orbearing 134 integrally formed therewith to receive a transverse rod 135having a plurality of perforations 136. rllie sleeve 134 hasperforations alining with perforations 136 through which are insertedpins 137 to maintain the rod against movement. Upon the outer ends ofthe rod 135 are slidably mounted clamp members 138 which normally alinewith the clamp inembers 120 for engaging the faces of a wall.

These clamp members are secured in position in a manner similar to theother clamps dey scribed in previous figures.

' In order to maintain the timbers 128 in spaced relation I vhaveprovided, as shown in Figs. 21 through 24 a device which consists .of aypair of U-shaped members 139 secured together at their lower ends bymeans of a cotter pin 140 passing through perforations in the U-shapedmembers and maintained in spaced relation at their upper ends by a pairof plates 141 and 142. The plate 141 is held against displacement bymeans of inturned flanges 143 on the upper ends of the U-shaped members139, said plate being provided with a threaded perforation a-dapted toreceive a threaded stud 144 which has its lower end in engagement withthe plate 142 so that when the stud is screwed inwardly it will beforced against plate 142 thereby forcing plate 142 memset against theinnermost timber 128. Cotter pin 140 has a small cotter pin 145 tomaintain the outer U-shaped member 139 against displacement, and thehead of cotter pin 140 may be slidable on a vertical post 122, as shownalthough this is by no means necessary. A clamp carrying post 122 can beused.

In this case when it is desired to elevate the timbers 128, which areadapted to support the usual planks forming the platform, it is onlyynecessary to apply a jack to the lsupport 126 after having removed thepins 133. When the platform has reached the proper elevation the pinsare again applied for maintaining the support in position.

Referring to Figures 11 and 12 it will be seen that a pair of clampmembers 146 are mounted on a column 147 adapted to clamp therebetweenone of the 1 beams 148 which constitute the usual floor beams of abuilding. Wooden shims 149 are placed between the clamp members and thebeams. Pins 15() engage the opposite ends of the sleeve portions 151 ofsaid clamp members and cooperate with set screws 152 to maintain theclamp members in position. Instead of one of the I beams 148 a woodenplank (not shown) may be placed between the pair of ends of said clampmembers 146. The clamp lmembers 1.46 are provided with flanges 160having perforations to receive one end of a tie rod 161 having athreaded nut 162 for maintaining an end of the tie rod againstdisplacement. The outer end 163 of each tie rod 161 is bent in U-shapedformation and engages over the flange at the opposite side of the I beam149 for maintaining the I beam against displacement.

Referring more particularly .to Figures 13 and 14, it will be seen thata horizontal'bar 164 carries a pair of clamp members 165 which areadapted to engage opposite faces of a horizontal wall. Shims (not shown)may be placed between the teeth of the clamp members 165 and the wall toprevent injury thereto, as per Figure 1. These clamp members 165 aresecured in position in a manner as has been previously explained, by a.set screw 168 and a key 169. Said clamp members 165 have perforated ears170 adapted to receive the perforated bifurcated ends 171 of aconnection 172 into which is threaded an adjustable end support 173.These end supports extend diagonally upwardly from the clamp members 165upon opposite sides of a post or column 174. This column has its lowerend threaded into asocket 175 carried by a sleeve 176 which is pinned asshown at 17 7 to the rod by inserting the pins through the perforations178 and 179 located respecizo memset two sections which are held inplace by means of Hanges 187 and bolts 188. The lower section 4of cachsleeve 1.86 bears against a short sleeve 189 having a slot 190 adaptedto receive a pin 191 inserted through a selected one of perforations 192of each adjustable end support 173. This construction, together with theend supports 173, provides a base for the outer ends of the rod 180. Achain 192n connected with the perforated ear 193 of the sleeve 189 isconnected with the l pin 191 to prevent loss of the pin from litsposition on thel sleeve. Each of the sleeves 185 is provided withperforated lugs. 194 on which is pivotally mounted a connection 195.Into said connection is threaded the lower end ofa stanchion 196. These'stancliions eX- tend upwardly and are connected to the'upper portions ofthe scaii'old which are similar in constructionfto the portions Justdescribed as forming the bottom orl base member of the scafi'ol fSlidably mounted. on the bar 180 are a pair of clamp members 197 spacedupon opposite sides of the post 174 and secured in position in themanner previously described. Abutting the outer edges of said clampmembers 197 is a vworking platform consisting of the planks 198. Thescaolding shown in Figures 13 and 14 is adapted to be clamped to a wallof a building at a'window opening.

It will be appreciated that by employing duplicate constructions in eachof the devices described that a second scaffolding may be readilyerected so that the work may progress without interference. ber of thehorizontal bars 180 may be em` ployed for the purpose with the necessaryaccessories for supporting the ends of said bars and for clamping theplatform in position.

-Referring more particularly to Figures 15 to 17 inclusive it will benoted that a more complicated structure is erected at the corner of thebuilding and which may be readily clamped to the walls embracing thewindow space. In this case a horizontal bar 199 is spaced from one wall200 while a horizontal bar 201 is spaced from another wall 202. Thesetwo walls meet at the corner 203. Upon the outer end of a bar 199 ismounted a sleeve 204 having a depending perforated ear 205. A pin 206received in a perforation in the bar 199 abuts the outer endof thesleeve 204 and maintains the same against displacement A tie or bracerod 207 is pivotally connected at one end as shown at 208 to theperforated ear 205. The other end is received by a sleeve 209 connectedto. a sleeve 210. rlhe In this case any numt sleeve 210 is horizontallypositioned and is adapted to receive a horizontal bar 217 which proiectsinwardly beyond the Wall 200. A

vpair of clamp members 212 are mounted upon opposite sides of the wall200 and are adapted to engage the' opposite faces ofsaid wall formaintaining the bar 217 in position. These clamp members 212 are securedin adjusted position on the bar 217 by set screws 213 and pins 214passing through perforations in the bar 217. A pin 215 passing through aselected one of the perforations in the brace rod 207 maintains the rodagainst movement through the sleeve 209. The rod 217 passes through thewindow space shown at 2,16 and has a sleeve 218 thereon adapted toreceive the lower end of a brace bar 219. The upper end of' this barpasses through a sleeve 220 which is held in` place on saidgrod -bymeans of a pin 221. rlhe sleeve 220 is connected to sleeve 222 carriedby the outer end of the upper bar 211. lPins 223 maintain the sleevesagainst displacement.

A sleeve 224 mounted on transverse bar 211 hasa horizontal sleeve 225disposed at `right angles to the sleeve 224 and is adapted to receivethe bar 199. The bar 211 is located in an upper window 227. A pin 226maintains the i bar 199 in position. The bar 199 is disposed .socket 230to receive a vertical rod 231.

At the outer end of the rod 201 is mount"- ed a sleeve 232 and held-against displacement by a pin 233 passing through a perforation in bar201. The sleeve 232 has a depending lug 234 adapted to receive thebifurcated part of a socket 236. A brace bar 237 Vis screwed into thesocket at its upper end and is received at its lower end by an angularlydisposed sleeve 238 which is connected to a sleeve 239, received by ahorizontal bar 240. Pins 241 maintain the sleeve against displacement. Apin 242 maintains the rod in position at the sleeve 238.

A pair of clamp members 243 embrace opposite sides of the wall 202 at awindow opening 244. The outer clamp member is provided with a perforatedlug 245 pivotally connected with a member 246 into which is 'screwed adiagonally disposed brace rod 247.

201 andcarries a horizontal-sleeve 255 carried by the bar 251 adjacentthe sleeve 250. The inner end of the bar 251 has a sleeve 256 carrying asleeve 257 which receives a brace bar 258. A pin 259 maintains the bar258 against displacen'ient. A second sleeve 260 at the inner end of thebar 251 is connected to a sleeve 261 received by a horizontal bar 262.

A horizontal bar 263 has a sleevet264 at its outer end provided with adepending lug adapted to receive the upper bifurcated end of a brace bar265 located below the bar 262 extending downwardly and is connected to asleeve carried by the bar 217.

The inner end of the bar 211 has a sleeve 267 connected with adiagonally disposed sleeve 268 which receives a brace bar 269. A pin 270maintains the bar 269 against dis-` placement. The lower end of the bar2 69 1s pivotally connected as shown at 271 with a sleeve 272 carried bythe rod 217. rIhe bar 269 braces the inner end of the bar 211.

On the outer end of the bars 211 and 201 are'disposed planks 273 uponthe outer ends of which are placed planks 274. The other ends of theplanks are supported by the rod 251. i

It will be seen by this construction that a plurality of clamps areIdisposed adjacent each window opening at the corner 203 of a buildingfor supporting horizontal bars 199 and 201 in connection with aplurality of diagonally disposed brace bars extending from the lowersupports to the upper supports for bracing the outer ends of all theupper horizontal bars 211, 201, 199 and 251. At the angle within thebuilding the inner ends of the horizontal bars 211 and 251 are alsobraced while the horizontal bars 262 and 263 are provided for supportingan inner platform at the inner corner of the wall. 'Furthermore theparts are so constructed that." they may be readily assembled and.erected as may be desired and they may be as readily-1.-

disassembled after the building has been com-k pleted. A pair of clampmembers 290 depend from a rod 291 resting on a window sill support ofthe wall 202. A rod 292 mounted in a sleeve 293 projects upwardly forconnection to an upper scaffolding not shown. rllhe sleeve 293 isintegrally fastened to a sleeve 299 on rod 251 as shown in Fig.' .17.This sleeve is formed integrally with a sleeve 294 mounted on the rod291.

A rod 295 pivoted at 296 on a sleeve-297 which is slidable on the. rod240, extends diagonally upward and is pivoted to a sleeve 298 on the rod262.

Figures 25 and 26 very clearly illustrate the I'sleeve 185 of Figure 13with the sectional sleeve made u of parts 186 which receive the rod orbrace 1 3. The sleeve 185 is provided at one side intermediate its endswith a cylindrical projection A having at its outer end a marginalcircular flange B. Each of the sections 186 is flattened at one side asindicated at C and the margin of each of these flattened portions issurrounded by a circular flange D. When the two sections are clampedtogether by means of the bolts 188, the two flanges D define an annularrecess wherein the flange B is confined. The relation of the parts issuch as to permit the relative rotay tion of the sleeve sections 186vand the sleeve 185. Thus when it is desired to elevate the scaffoldsupporting bars 180 the sleeve 185 and the connected sections 186 willpivot slightly to compensate for the inward movement of the brace rods17 3.

It is to be noted that the various inter-connected sleeves mentioned inother parts of the specification and illustrated in the drawings may beformed in the same fashion as above described.'

Referring to Figs. 13 and 14 it is pointed out that the presence of slot190 in sleeve 189 enables me to get two adjustments of sectional sleeves186 on rods 173 without re moving pins 191. Specifically,-the secondadjustment, may be had by elevating. sectional sleeves 186 and sleeves189 and then rotating the latter so that their lower ends will rest onpins 191.

What I claim is: I j

1. An adjustable scaffold support comprising a transverse bar, clampmembers slidably mounted on said bar adapted to engage opposite faces ofa wall, means for securing the clamp members in position, upstandingmeans having its lower end slidably connected to the transverse bar, aplatform support supported by the upstanding means, and means slidablymounted on the platform support adapted to clamp opposite faces of thewall for maintaining the upstanding means in position.'`

l2;"An adjustable scaffold support comprisving a transverse bar, clampmembers slidably mounted on vthe transverse bar, means for locking theclamp members 1n position when said clamp members engage opposite facesof a wall, an upstanding bar having its lower end slidably mounted onthe transverse bar, a sleeve slidably mounted on the upstanding bar andhaving supporting means at opposite sides of the upstanding bar.

3. An adjustable scaffold support comprising a transverse bar, clampmembers slidably mounted on the transverse bar, means for locking theclamp members in position when said clamp members engage opposite facesof a wall, an upstanding bar having its lower end slidably mounted onthe transverse bar, a sleeve slidably mounted on the yupstanding vbarand having supporting means at opposite sides of the upstanding bar, asecond sleeve carried by said rst-mentioned sleeve and angularlydisposed with respect thereto, a bar slidably mounted in the secondsleeve, and clamp members slidably mounted on said memes latter bar andadapted to engage opposite faces of a wall.

4. An adjustable scaffold support comprising a transverse bar, clampmembers slidably mounted ont-hc transverse bar, means for locking theclamp members in position when said clamp members engage opposite facesof a. wall, an upstan'ding bar having its lower end slidably mounted onthe transverse bar, a sleeve slidably mounted on the upstanding bar andhaving supporting means at opposite sides of the upstanding bar, theupstanding being provided with a plurality of perforations, the sleevesli'dably mounted on the upstanding bar being provided with perforationsadapted to aline with the perforations in the upstanding bar, and pinsadapted to be received by the alined perforations for locking the firstmentioned sleeve in an adjusted position on the upstanding bar.

5. An adjustable scaffold support comprising a transverse bar, clampmembers adjustably mounted on said bar and adapted to engage oppositefaces of the wall, an upwardly upstanding rod having its lower endslidably mounted on the transverse bar, a sleeve slidably mounted on theupwardly extending rod, a transverse sleeve carried by said first namedsleeve, a bar for supporting a platformslidably and mounted in thetransverse sleeve, clamp members ladjustably mounted on the lastmentioned bar, a brace rod pivotally connected with the first mentionedclamp members, sleeves carried by the opposite ends of the platformsupporting bar and adapted to engage by the free end of the brace bars.

6. An adjustable scaffold support comprising a transverse bar, clampmembers adjustably mounted on said bar and adapted to engage oppositefaces of thc Wall, an upwardly extending rod having its lower endslidably mounted on the transverse bar, a sleeve slidably mounted on theupwardly extending rod, a transversely disposed sleeve carried by saidfirst-mentioned sleeve, a bar for supporting a platform slidably andmounted in the transverse sleeve, clamp members adjustably mounted onthe last mentioned bar, a brace rod pivotally connected with the firstmentioned clamp members, sleeves carried by the opposite ends of theplatform supporting bar and adapted to engage by the free end of thebrace bars, said brace bars being disposed at an acute angle to theplane of the transverse sleeve, and pins for securing the sleeves jcarried by the platform supporting bar for locking the sleeves to thebrace bar.

7. An adjustable scaffold support comprising a transverse bar, clampmembers adjustably mounted on said bar and adapted to en-l gage oppositefaces of the wall, an upwardly extending rod having its lower endslidably ymounted on the transverse bar, a sleeve slidably mounted onthe upwardly extending rod, a transverse sleeve carried by saidfirstmentioned sleeve, a bar for supporting a platform and slidablymounted in the transverse sleeve, clamp vmembers adjustably mounted onthe last mentioned bar, a brace rod pivotally connected with the firstmentioned clamp members, sleeves carried by the opposite ends of theplatform supporting bar and adapted to engage by the free end ofthebrace bars, said brace bars being disposed at an acute angle to theplane of the transverse sleeve, pins for securing the sleeves carried bythe platform supporting bar for locking `the sleeve to the brace bar,and a vertically disposed brace rod having a pivotal conneclgion with asleeve on the platform supporting 8.'An adjustable platform supportcomprising a transverse bar, clamp members, slidably mounted clampsthereon adapted to engage opposite faces of a wall, an upwardlyextending rod supported by the transverse bar, a platform support barhorizontally positioned and carried by the upwardly extending rod, andbrace rods pivotally connected with the clamp members on the firstmentioned transverse bar and having sliding connections with the ends ofthe platform support bar.

9. An adjustable platform support com- 9 prising a transverse bar, meanscarried by the bar adapted to clamp the opposite faces of the wall of abuilding for securing the bar in rigid position, a second transverse barlocated above the .first bar, means carried by 'said bar for clampingthe opposite faces of a wall of a building, a third transverse barcarried by the second transverse bai-brace rods connecting the firstmentioned bar with the third transverse bar.

10. An adjustable platform support comprising a transverse bar, meanscarried by the bar adapted to clamp the opposite faces of the wall of abuilding for securing the bar in rigid position, a second transverse barlocated -above the first bar, means carried by said bar for clamping theopposite faces of a wall of a building, a third transverse bar carriedby the second transverse bar, brace rods connecting the first mentionedbar with the third transverse bar, a horizontal supporting bar carriedat one end by the third transverse bar, a diagonally disposed brace barconnecting the other end of the horizontal bar with the first mentionedtransverse bar, a second horizontal bar supported at one end by the freeend of the first horizontal bar, and means for bracing the end of thesecond horizontal bar which is adjacent the first horizontal bar, andmeans connected with the wall of a building for supporting the other endof the second horizontal bar. y

1l. An adjustable platform support comprising a pair of horizontal barsarranged at an angle to each other and said bars having v pair ofhorizontal bars.

12. An adjustable platform support comprising a pair of horizontal bars`arranged at an angle to each other and said bars having the adjacentends thereof` in Contact with each other, a third horizontal barprovided with means adapted to be clamped to the opposite faces of awall, said third horizontal bar supporting the free end of one of thehorizontal bars, a fourth horizontal bar having means adapted to -clampopposite faces of al wall and providing a support for the free end ofthe other horizontal bar of the pair of horizontal bars, means supportedfrom a lower position for supporting the engaging ends of the pair ofhorizontal bars, means for bracing the free ends of the third horizontalbar, and means for bracing the ends of the fourth mentioned horizontalbar.

13. An adjustable platform support adapted to embrace the Walls at acorner of a building, comprising a pair of platform supporting rodshaving their outer ends in overlapped relation, transverse bars clampedto the walls at a lower level than the platform supporting rods,diagonally disposed brace bars having sliding engagement at their lowerends with the transverse bars and pivotally connected at their upperends to the overlapped ends of the platform supporting rods7 transversebars disposed adjacent the platform supporting bar, means for clampingthe transverse bars to the wall, and means connecting the other end of aplatform supporting rod to one of the last mentioned transverse bars.

14. An adjustable platform support adapt-l ed to embrace the walls at acorner of a building comprising a pair of platform supporting rodshaving their outer ends in overlapped relation, transverse bars adaptedto be clamped to the walls at a lower level than the platform supportingrods, diagonally disposed bracebars having sliding engagement at theirlower ends with the transverse bars and pivotally connected at theirupper ends to the overlapped ends of the platform supporting rods,transverse bars disposed adjacent the platform supporting bar, means forclamping the transverse bars to the wall, means connecting the other endof a platform supporting rod to one of the last mentioned transversebars, other transverse bars adjacent the first mentioned transversebars, and diagonally disposed brace rods supporting the ends of the lastmentioned transverse bars.

15. An adjustable platform support comprising transverse bars, means forsecuring the transverse bars in position on the wall of a building7platform supporting rods located at a higher level than the transversebars, a second series of transverse bars located above the iirstmentioned transverse bars for supporting the platform supporting rods,means connected with the first mentioned transverse bars for bracing theends of the platform supporting rods, sleeves carried by the upper andlower transverse bars, a brace bar received by the sleeves, and pinscarried by the brace bars engaging the sleeves for maintaining the bracebars against movement.

1G. An adjustable platform support comprising a plurality of transversebars, means on each transverse bar for clamping the transverse bars tothe wall of a building, certain of the transverse bars being located ata different level from the horizontal level of the other transversebars, diagonally disposed brace rods connecting the ends of the upperand lower transverse bars, a plurality of platform rods supported at oneend by the upper transverse bars, and 'brace bars connecting the lowertransverse bars with the other ends of the platform supporting rods.

17. In a scaffold support, a bar, laterally projecting clamp members,bearings formed adjacent one end of said clamp members,

said bearings receiving said bar whereby to mount the clamp membersthereon for relative sliding movement, said bearings having outwardlytapered and relatively unrestricted passages communicating with therodreceiving portions thereof, means insertible in said passages forclamping said clamp members upon said rod, and said clamp members onremoval of said last-mentioned means being rockable on said rod wherebythey may be disengaged from a support without necessitating their beingslid outwardly on the rod. 18. The combination set forth in claim17,-and said insertible clamping means being a plate, a set screwcarried by said clamp members and acting on said plate for forcing thesame against said rod, and said plate having lateral flanges at each endengaging the surfaces if said clan'ip member at opposite sides thereofthrough said bearing pas# sage whereby the said plate will remain in'said passage when the set screw is loosened or removed. i 19. Thecombination set forth in claim 17,-and means independent of saidinserti-` ble means for-holding said clamp members against slidingmovement on said rod. l

ln testimony whereof I affix my signature.-

JOHN Benessere, sa.

